AB20-1 Datasheet, PDF (1/16 Pages) Lumileds Lighting Company – Using SuperFlux LEDs in Automotive Signal Lamps

Application Brief AB20 1
Using SuperFlux LEDs in
Automotive Signal Lamps
Introduction
Lumileds Lighting SuperFlux LEDs are specifically designed for automotive
signal lamp applications and are designed to operate at high DC forward
currents reliably over the automotive temperature range. Each SuperFlux
LED generates several lumens of luminous flux. In addition, SuperFlux LEDs
have a low thermal resistance package, which reduces the temperature rise
within the LED signal lamp. This allows for higher drive currents and
reduces the loss in optical flux due to self heating. SuperFlux LEDs allow
the designer to significantly reduce the number of LEDs needed to provide
the required light output.
The colors of SuperFlux LEDs are designed to be compatible with SAE and
ECE color requirements. SuperFlux LEDs are available in an amber color
with dominant wavelengths of 592 and 594 nm. Red orange and red
SuperFlux LEDs are available in three colors with dominant wavelengths of
618, 620, and 630 nm. The red orange color is designed to match the
color of filtered incandescent bulbs.
Index
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1
Signal Lamp Design Process . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3
Estimating the Number of SuperFlux LEDs Needed For a Signal Lamp . . . . . . . . . . . . . . . .5
Calculating the Minimum Number of LEDs Required . . . . . . . . . . . . . . . . . . . . . . . . . . .13
References . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .15